Question

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The supplementary angle of 140' is 220​

Answer 1

supplementary angles 40 and 140

These two angles (140° and 40°) are Supplementary Angles, because they add up to 180°:

Notice that together they make a straight angle.

supplementary angles 60 and 120

But the angles don't have to be together.

These two are supplementary because

60° + 120° = 180°